Related Clues:

• Potent drug
• Lethargy inducer
• Trippy letters
• The U.S. banned it in 1967
• Drug that can cause flashbacks
• Narc's haul
• Psychedelic of the 60's
• Hallucination drug
• Sedative drug
• Endorphin, e.g.
• Hallucinogen
• It may cause you to trip
• What a hippie may have dropped
• It's dropped
• Trip need, perhaps